Primitive Technology: Wood Ash Cement

Primitive Technology: Wood Ash Cement

سال

2018

صنف

Rock

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Primitive Technology: Wood Ash Cement

RockRock

سال

2018

دورانیہ

3m

Primitive Technology: Wood Ash Cement - Creating wood ash cement from scratch Subscribe: http://bit.ly/subPT | Never miss a video! Enable ‘ALL’ Notifications! More videos, watch me cultivate and cook yams from scratch: http://bit.ly/2L5HmqY Follow Primitive Technology: Wordpress: https://primitivetechnology.wordpress.com/ Patreon: https://patreon.com/useru=2945881 Watch More Primitive Technology: Latest Uploads: https://youtube.com/playlistlist=PLGnWLXjIDnpBR4xqf3FO-xFFwE-ucq4Fj Pyrotechnology: https://youtube.com/playlistlist=PLGnWLXjIDnpBVRqu5lz5JGaQxjPs7q3CJ Shelter: https://youtube.com/playlistlist=PLGnWLXjIDnpBBsdKZb-vy30o88SIxItp2 Weapons: https://youtube.com/playlistlist=PLGnWLXjIDnpA-XGDrrmVgBnSXx15i2Awp Popular Videos: https://youtube.com/playlistlist=PLGnWLXjIDnpAb29Lrdki5BPjTpMon8zla Partial credit for this idea goes to James Keane who I discussed this with on my wordpress site (see conversation): https://primitivetechnology.wordpress.com/2018/03/06/lime/#comment-9736 I developed an experimental cement from made only from re-fired wood ash as its cementitious material. It was mixed with crushed terracotta as an aggregate and formed into a cube. The cement set hard after 3 days and did not dissolve in water after this period. Process: First I burnt bark and leaves in a kiln at high temperatures to produce well burnt, mostly white wood ash. The ash was then mixed into water and stirred well. The excess water was poured off and the resulting paste was made into pellets and allowed to dry. A pellet was then re-heated in the forge until it glowed about orange hot. This was then taken out, cooled and dropped in a pot of water. The pellet dissolved and boiled due to a chemical reaction with the water. The paste was stirred and crushed terracotta (old tiles from previous projects) was added and mixed to form a mouldable mortar. This was formed into a cube and allowed to set for three days (in the video, a cube made exactly the same way 3 days previously was used due to time constraints). The resultant

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